Rollei offers a new quick-mount system for quickly transferring the camera between tripods, sliders and the like. It consists of one (or more) base plate(s), each mounted on the accessory via a 1/4-inch or 3/8-inch connection, and an interchangeable plate that is attached to the camera.
The camera simply clicks into place on the base plate -- to release it, the base plate must be rotated until the interchangeable plate attached to the camera clicks loose and can finally be removed. A payload of up to 8 kg is supported. The quick release system itself weighs 93g.
The Rollei quick release system costs 39.99 euros in the basic set (one base plate with one interchangeable plate), alternatively there are sets with 2 or 3 base plates.